I have never used the E200/128 controller. Based on my experience here, I would probably want to get any battery or memory options available. When you first set it up, run the ATTO bench32.exe program to make sure it's working OK. Bench32 writes then reads back a file (you can change the file size, default is 256MB) using many different block sizes. Very small blocks of data are less efficient, so the speed is lower. With a normal drive or RAID array, even with the smallest block sizes you will still get around 4000 KB/sec read and write speeds. On the RAID5 array, I am getting 2 KB/Sec for that block size. For large block sizes you will get the native speed of a single drive, or higher speeds for an array of disks. Most drives these days get between 50000 and 100000 KB/sec with large block sizes. My encrypted laptop drive gets 50,000KB/sec write and 42,000KB/sec read for 8192 KB block size.
I did not know that HP is now selling the long rumored 300GIG 2.5 inch SAS drives. Do you have a part number? -----Original Message----- From: Glen Johnson [mailto:gjohn...@vhcc.edu] Sent: Wednesday, February 25, 2009 11:20 AM To: NT System Admin Issues Subject: RE: HP RAID5 P400 SATA questions Two of the servers will have 2 x 72gig 15krpm sas 2.5inch raid 1 for os and 3 x 146gig 10krpm 2.5inch sas raid 5 for data. These are for MS-Hyper-v use. Exchange server will have 2 x 72gig 15krpm sas 2.5inch raid 1 for os, 2 x 146gig 10krpm 2.5 inch sas raid 1 for logs and 3 x 300gig 10krpm 2.5inch sas for exchange dbs. Last server is for a users home directories. It will have 2 x 72gig 15krpm raid 1 for OS, 6 x 300gig 10krpm 2.5inch sas raid 5 for data. The one other server may be even worse. It is for a domain controller, dhcp and dns. It has the E200/128 controller. Any bad news on that controller? -----Original Message----- From: Alverson, Tom (Xetron) [mailto:tom.alver...@ngc.com] Sent: Wednesday, February 25, 2009 9:27 AM To: NT System Admin Issues Subject: RE: HP RAID5 P400 SATA questions I would definitely get the battery/memory add-on option if I were you. Are you going to use SAS or SATA drives? What size? -----Original Message----- From: Glen Johnson [mailto:gjohn...@vhcc.edu] Sent: Tuesday, February 24, 2009 9:51 PM To: NT System Admin Issues Subject: RE: HP RAID5 P400 SATA questions Tom. I am very interested in the outcome of this as I have 5 servers on order and 4 of them will have this same controller. I forwarded the first email from this thread to our rep to see if he had heard anything and asked if we should be concerned. He said he would do some checking and let me know what he learns. I'll let everyone know if he shares anything of value. I sure hope it is something that can easily be fixed as it may be too late for us to change the order. Thanks. Glen. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
